Country selector search announces double the countries found to screen reader users

[nchan0154]

Describe the current behavior

• Turn on a screen reader
• Go to a country selector in the Dawn theme preview store
• Type any query into the searchbox
• The number of countries announced in the live region are doubled

Describe the expected behavior

• The correct number of countries should be announced

Version information (Dawn, browsers and operating systems)

• Dawn Version: 15.2.0
• Chrome Version 129.0.6668.90
• NVDA
• Windows
• Should be reproduceable on any OS/AT combo

Possible solution

Remove line 164 from localization-form.js

    allCountries.forEach((item) => {
      const countryName = this.normalizeString(item.querySelector('.country').textContent);
      if (countryName.indexOf(searchValue) > -1) {
        item.parentElement.classList.remove('hidden');
        visibleCountries++; // This line
      } else {
        item.parentElement.classList.add('hidden');
        visibleCountries--;
      }
    });